Cumulative distribution function looks like this:<ref>URL: [http://www.mathworks.com/help/stats/binocdf.html http://www.mathworks.com/help/stats/binocdf.html]. Accessed on: 17 February 2013.</ref>
A distribution in a system with two possible outcomes, e.g. cell with mitosis or cell without mitosis.
:<math>F(m;c,p) = \sum_{i=0}^{ m } {c\choose i}p^i(1-p)^{c-i}</math>